Trolley-pole.



No. 764,194. PATLNTBD JULY 5, 1904. G. JONES.

TROLLEY POLE.

APPLICATION FILED DEG.17, 1903.

NO MODEL.'

Y Caif Unirse STATES.

Patented July 5, 1904.

ATnNr erica.

TROLLEY-POLE SPECIFICATION forming part of Letters Patent No. 764,194, dated July 5, 1904.

Application filed December 17, 1.903. Serial No. 185,563. KNO model.)

To :1J/Z whom, it Timmy concern:

Be it known that I, OALEB JONES, a citizen of the United States, residing at London, in the county of Laurel and State of Kentucky, have invented a new and useful Trolley-Pole, of which the following is a specification.

This invention relates to certain improvements in trolleys for electric railways, and more particularly to the trolley-arm and support therefor.

One object of the invention is to provide means whereby the trolley-arm and its contact-wheel may be supported in constant engagement with the overhead wire, so as to allow the said wheel to follow the irregularities of the conductor without danger of derailment.

A further object of the invention is to provide a trolley-arm which will automatically adapt itself to the conductor and which will assume the proper' slant or inclination with respect to thc conductor when the car is travcling in one direction and automatically reverse the position of the trolley-arm when the direction of travel of the ear is reversed.

A further object is to provide means for attaching' the operating-cord to the trolley-pole and for taking up the slack in the cord and automatically regulating the tension thereof.

A still further object is to provide a novel form of support or stand for the trolley-arm capable of exerting' sufiicient upward pressure on said arm to insure the necessary frictional Contact with the conductor.

The invention consists in the construction and novel combination and arrangement 0f parts hereinafter fully described, illustrated in the accompanying drawings, and pointed out in the claims hereto appended, it being understood that various changes in form, proportion, and minor details of construction maybe resorted to without departing from the principle or sacrificing any of the advantages of this invention.

In the accompanying' drawings, Figure 1 is a side elevation of a portion of a car provided with my improved trolley-arm and support, showing in dotted lines the position of the trolley-arm when reversed. Fig. 2 is a vertical sectional View of the same. Fig. 3 is a transverse sectional View. Fig. 4 is a detail sectional view showing the manner of attaching the standard to the car-roof, and Fig. 5 is a detail sectional view of the springdrum.

Similar numerals of reference indicate corresponding par'ts in all the figures of the drawings.

1 designates a portion of a car to the central portion of the roof of which is secured in any suitable manner a bearing-plate 2, provided with a threaded opening 3, adapted to receive the threaded extension of a hollow cylindrical post or standard 4, said standard being rigidly secured to the top of the car by means of a nut engaging the threaded end thereof, as shown. Pivoted to the top of the cylindrical standard in any suitable manner, as by a pin or bolt 5, is

the trolley-support 6, provided with a threaded socket 7 and a pair of spaced upwardly-curved arms 8, between the opposite ends of which are pivoted links 9. Secured to the links 9 are preferably coiled springs 10, the opposite ends of said springs being attached to a suitable cross-bar 11, secured to the post or standard. The tendency of the coil-springs 10 is to cause the support 6 to always assume a vertical position,thereby insuring the proper frictional contact between thetrolley-arm 11" and the conductor when said arm is deflected. The trolley-arm 11LL consists of two or more tubular telescopic sections 12, the upper section carrying the trolley-wheel 13 and the lower section iitting within the threaded socket 7 of the trolley-support, as shown. Each of the telescopic sections comprising the trolleyarm is internally threaded at one end, as shown at 14, and fitting' within each section is a coiled spring 15, the tendency of which is toeXtend said sections and force the trolley-wheel in contact with the conductor, a blind screw 16 engaging the threaded ends of the respective sections and serving' to adjust the tension of said springs and retain them in their proper positions. By this arrangement the several sections may be compressed to allow the trolley-arm to be turned over vertically when the direction of travel of the car is reversed, the slight slant or inclination of the trolley-arm permitting said operation to be accomplished IOO automatically as soon as the car starts in the opposite direction. As a means for preventing the sections 12 from rotating I form each section with a longitudinal groove or channel 17, adapted to receive a key or spline 17, secured to the opposite or preceding' section, thereby insuring positive engagement of the trolley-wheel with the conductors at all times.

Secured to the top of the car, at the front and rear end thereof, are supporting-brackets 18, in which are journaled tension-rollers 19, upon which the trolley-rope 2O is wound, a coiled spring 21, one end of which is secured to said rollers, the opposite end being' fastened in any suitable manner to the bracket, serving to take up the slack in the cord and regulate the tension thereof. The cord 2O is secured to the trolley-arm through the medium of a sleeve or collar 21, slidably mounted on the top section of the trolley-arm, thereby permitting said arm to be extended or depressed without interfering with the cord. The object of the cord 20 is to replace the trolley-wheel should it accidentally slip the conductor and also to assist in reversing the trolley-arm if for any reason the parts should get out of order.

In operation should the car be traveling in the direction of the arrow indicated in Fig. 1 of the drawings the trolley will assume a position at a slight angle to the conductor, being held in frictional contact therewith by means of the springs 10 and 15. Should the direction of travel of the car be reversed, the movement thereof will cause the sections comprising the trolley-arm to be compressed sufficiently to allow the trolley to assume a vertical position and after it has passed the vertical point to expand and follow the wire in the direction of travel of said car.

From the foregoing description it will be seen I have provided a trolley-arm and support capable of automatically accommodating itself to the direction of travel of the car, thereby obviating the necessity of the conductor or other person leaving the ear and shifting the trolley, as is at present the case.

Having thus described the invention, what I claim, and desire to secure by Letters Patent. is#

1. A trolley-pole comprising, a plurality of spring-pressed telescopic sections, a sleeve or collar carried byY one of said sections, a trolyley-rope secured to said sleeve or collar, a

spring-actuated roller for regulating the tension of the rope, and means for yieldably supporting thelpole.

2. A trolley-pole comprising', a plurality of spring-pressed telescopic sections, a sleeve or collarslidably mounted on one of said sections, a trolley-rope secured to said sleeve or collar, a spring-actuated roller for regulating the tension of the rope, means for locking the telescopic section from independent rotative movement. and means for yieldably supporting the pole.

3. A trolley-pole comprising, a plurality of telescopic sections having terminal threaded portions, a spring carried by said sections for yieldably extending the same, and a screw engaging the terminal threads of each section, for regulating the tension of the springs.

1. A trolley-pole comprisinga plurality of hollow telescopic sections, each provided with a tongue-and-groove connection, a spring carried by each section and disposed within the same for normally extending' said sections, means for regulating the tension of the springs, and means for yieldably supporting said pole.

5. In a device of the class described, a basepiece, a standard rigidly secured thereto, a main supporting-piece pivoted to the standard, a trolley-pole carried by the supportingpiece and comprising a plurality of telescopic sections, a spring carried Vby each section for extending the same, means for regulating the tension of said springs, and a spring connection between supporting-piece and the standard.

6. In adevice of the class described, abasepiece, a standard rigid ly secured thereto, a main supporting'- piece having upwardly curved spaced arms and provided with a centrally-disposed socket pivoted to said standard, links pivoted between the spaced arms of the supporting-piece, springs connected to said links and the standard, and a trolley-pole comprising a plurality of spring-extended telescopic sections iitting within the socket in the pivoted supporting-piece.

7. In a device of the class described, the cembination with a car, of the standard, a mai n support pivoted thereto, a trolley-pole comprising a plurality of spring-extended sections secured to ythe pivoted support, acollar slidably mounted on one of said sections, a pair of rollers secured to the front and rear of the car respectively, a liexible medium connecting the sliding collar with said rollers, means carried by the rollers for regulating the tension thereof and a spring connection between the pivoted support and the standard.

8. In adevice of the class described,the coinbination with a car, of a trolley-pole pi voted to the roof of the car and formed of a plurality of spring-pressed telescopic sections, springactuated rollers secured to the car on each side of the trolley-pole, and a flexible connection between the rollers and one of the telescopic sections.

In testimony that I claim the foregoing as my own I have hereto aflixed my signature in the presence of two witnesses.

CALEB JONES.

Vitnesses:

IVILEY JONES, CHARLES C. JoNns.

IOO

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